142119845 has 12 divisors (see below), whose sum is σ = 198388044. Its totient is φ = 97453440.

The previous prime is 142119823. The next prime is 142119851. The reversal of 142119845 is 548911241.

It can be written as a sum of positive squares in 2 ways, for example, as 52287361 + 89832484 = 7231^2 + 9478^2 .

It is not a de Polignac number, because 142119845 - 2⁸ = 142119589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289796 + ... + 290285.

It is an arithmetic number, because the mean of its divisors is an integer number (16532337).

Almost surely, 2^142119845 is an apocalyptic number.

It is an amenable number.

142119845 is a deficient number, since it is larger than the sum of its proper divisors (56268199).

142119845 is an equidigital number, since it uses as much as digits as its factorization.

142119845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580100 (or 580093 counting only the distinct ones).

The product of its digits is 11520, while the sum is 35.

The square root of 142119845 is about 11921.4028117500. The cubic root of 142119845 is about 521.8570741927.

The spelling of 142119845 in words is "one hundred forty-two million, one hundred nineteen thousand, eight hundred forty-five".